Concentrate dispenser with supply container removable from peristaltic pump

ABSTRACT

A dispenser designed to mix a relatively viscous concentrate contained in a disposable container removably mounted therein with a diluent and then dispense the resultant diluted mixture. A peristaltic type pump is used on a flexible conduit which is removably connected between the disposable container and a mixing nozzle assembly. The mixing nozzle assembly includes a valve arrangement for controlled mixing of the diluent with the concentrate in proper porportions immediately prior to exiting from the dispenser.

United States Wa /teat 1191 Eauerlein et a1. 1 Aug. 7, 1973 CONCENTRATEDISPENSER WlTi-l SUIPLY 1,874,667 8/1932 Wadam 417 477 x ONTAINERREMOVABLE FROM 2,766,610 10/1956 Bauerle1n.. 222/1292 EERISTALTIC PUMP3,438,548 4/1969 Ceyba 222/80 2,662,666 12/1953 Lampert 222/214 X [75]Inventors: Carl C. Bauerlein; Linda M. Wertz; 3,263,876 811966 Perfetto222/569 Kenneth Acuff, n of clearwater 3,232,496 2/1966 Rockwell, Jr. eta1... 417/476 X Fla 2,015,123 9/1935 Pennel 417/477 X 3,227,091 1/1966lsreeli et a1. 417/477 X l [73] Assignee: Lykes Pasco Packing Co.,Dispenser Manufacturing Div., Clearwater, Fla.

[22] Filed: Oct. 2, 1970 [21] Appl. No.: 77,431

Primary Examiner-Robe1t B. Reeves Assistant Examiner-David A. ScherbelAttorneyStefan M. Stein {57] ABSTRACT 8 Claims, 18 Drawing Figuresminnows SHEET 1 0f 4 FIG. IA

INVENTORS CZARL C. BAUERLEIN LINDA M.WERTZ BY KENNETH L.ACUFF ATTORNEY.

PAIENIEB 3.750.908

sum 2 ur 4 INVENTORS CARL C. BAUERLEIN LINDA M.WERTZ BY KENNETH L.ACUFFWww ATTORNEY.

PATENIED AUG 7 i973 SHEET 3 0F 4 INVENTORS W E RTZ ATTORNEY.

CONCENTRATE DISPENSER WITH SUPPLY CONTAINER REMOVABLE FROM PERISTALTICPUMP The present invention involves a post-mix dispenser capable ofhandling relatively high density of viscous concentrates directly from adisposable container. The concentrate is delivered, in regulated flow toa mixing nozzle where it is mixed with the proper amount of diluentprior to being dispensed.

There are large numbers of dispensers presently on the market designedto dispense liquid foods such as orange juice, tomato juice, grape juiceetc. Originally, the majority of them were of the pre-mix type whereinthe liquid concentrate was placed in a large container or bowl intowhich was also added the proper amount of diluent. The diluent wasmanually pre-mixed with the concentrate prior to dispensing of theliquid food. Circulating means of some sort was usually required inorder to keep the mixture uniform thereafter.

Presently, the use of post-mix dispensers have become popular becausethey have been found to be much more economical and efficient. Inaddition, they dispense a product vastly superior in flavor. The tastealmost perfectly duplicates fresh fruit juice. The separate storing ofthe concentrate and the diluent also provides increased stability and alonger overall shelf life.

lt isalso easier to properly mix, in the correct ratio, the

concentrate and the diluent prior to being dispensed. Such eliminatesthe need for circulating means previously required. Circulating meansbesides being costly, furthermore do not insure a properly mixed productbeing delivered from the dispenser.

While it is well recognized that post-mix dispensers are preferable tothe pre-mix type dispenser, as pointed out above, various disadvantagesand inherent problems have been discovered with currently availablepost-mix type dispensers. The vast majority of them are designed todispense concentrate only in the range of 425l Brix. It is well knownthat the higher the Brix, the longer the storage life of theconcentrate. For example, the storage life of 65 Brix concentrate isapproximately three months whereas concentrate of 42-51 Brix has only alimited storage life of two to three weeks. Unfortunately, however, 65Brix concentrate is much more viscous. This creates a problem of wastewhen trying to transfer such high density concentrate from one containerto another.

To date, all post-mix dispensers have been designed with permanentlyinstalled concentrate storage containers which are loaded by dumpingfrom conventional cans. It should readily be apparent, that when dealingwith a high density concentrate in the range of 65 Brix, a considerableamount of concentrate is left in the conventional can.

Permanently installed concentrate storage containers also suffer thedisadvantage of being difficult to clean and to meet sanitationrequirements called for by the Food and Drug Administration or localhealth authorities. Cleaning difficulties are also one of the majorreasons causing clogging of the machine and accounts for the majority ofexpensive and troublesome service calls experienced by distributors.

All of these problems present in prior art devices are solved in thisinvention which is directed to a post-mix type dispenser designed tohave removably mounted therein a disposable and combined shipping anddispensing container. The problem of sanitation is further reduced byhaving various other structural elements coming in contact with theconcentrate being designed to be disposable and removably mounted withinthe dispenser so as to avoid cleaning of these parts when a new supplyof concentrate is added.

Accordingly, it is an object of this invention to provide a post-mixtype dispenser which includes a disposable dispensing containerremovably mounted within the dispenser so asto allow efficientinstallation and removal of the container.

Another object is to provide a post-mix dispenser including a combineddisposable dispensing and shipping container which accomplishes theefficient dispensing of high Brix concentrate directly from the shippingcontainer thereby eliminating waste.

Another object is to provide a post-mix type dispenser including adisposable dispensing container wherein the dispensing container issuitable for storage and shipping of a high Brix concentrate prior touse in the dispenser, thereby eliminating cleaning and sanitationproblems associated with the container.

Another object is to provide a post-mix dispenser in cluding adisposable dispensing container suitablefor shipping and storage of ahigh Brix concentrate wherein the concentrate can be stored in thedispenser for relatively long periods.

Still another object is to provide a post-mix type dispenser wherein aplurality of variable size disposal dispensing containers may beremovably mounted within the dispenser so as to provide for thedispensing of a plurality of different post-mix products.

A further object is to provide a post-mix type dispenser which includesdisposable means for conveying the contents of the dispensing containerto the mixing area of the dispenser.

More specifically, it is an object to provide a post-mix type dispenserwhich includes a disposable conduit means removably attached to thedisposable dispensing container serving to channel the contents of thedis; pensing container to the mixing area of the dispenser in such amanner as to eliminate sanitation problems associated with thedispenser.

A still further object of the present invention is to provide a post-mixtype dispenser which includes a pump assembly for delivering thecontents of the disposable dispensing container in a regulatedfashion tothe mixing area of the dispenser.

Another object is to provide a post-mix type dispenser which includes apump assembly movably mounted so as to move into and out of operativelocking engagement with the flexible conduit means serving to channelthe contents of the disposable dispensing container to the mixing areaof the dispenser.

Another object is to provide a postmix type dispenser which includes amixing nozzle assembly for receiving a predetermined amount ofconcentrate and diluent material. 1

Another object is to provide a post-mix type dispenser which includes amixing nozzle assembly comprising an adjustable valve for regulating theflow of diluent to the mixing area of the dispenser.

Another object is to provide a post-mix type dispenser which includes aflexible conduit means removably connected to each of the disposabledispensing container, pump assembly and mixing nozzle assembly such thatthe contents of the disposable dispensing container is channeled fromthe container to the mixing area of the dispenser in a regulatedfashion.

Other objects of the invention will in part be obvious and will in partappear hereinafter.

In accordance with the above cited objects, the present inventioncomprises a dispensing device primarily designed to dispense liquidfoods such as juices or the like wherein the dispensed liquid is formedfrom mixing a relatively high density liquid concentrate with a diluentimmediately prior to dispensing of the liquid from the device. Morespecifically a portable, disposable or throw-away? type container isremovably mounted within the dispenser and serves to store the liquidconcentrate. In the preferred embodiment of this invention the containerin which the concentrate is shipped is designed to serve as thedisposable dispensing container.

Accordingly, the shipping container ofa concentrate so I used must beadapted to allow for the attachment of a conduit means designed todirect the flow ofa concentrate to the mixing area of the dispenser aswill be explained in greater detail later. The dispenser itself isdesigned to have the dispensing container removably mounted therein suchthat a flexible conduit means is removably attached thereto andpositioned in cooperating relation with a peristaltic type pump.

The peristaltic pump is part of the pump assembly which furthercomprises a rotatable shaft having a substantially helically mountedflange formed along the outer periphery of the shaft. The pump assemblyfurther comprises a backup plate which may be positioned in cooperatingrelation with the rotating shaft. More specifically, both the rotatingshaft and the backup plate are pivotally mounted so as to move intointimate operative engagement with the flexible conduit means extendingfrom the disposable container. When in operative position the backupplate engages the flexible conduit in a supporting relation while thehelical flange engages and accordingly deforms or depresses the flexibleconduit means in a continuous descending fashion. This action of boththe support plate and the helical flange serves to force the concentratethrough the flexible conduit in a peristaltic fashion wherein theconcentrate is delivered to a mixing nozzle assembly.

The flexible conduit is also removably attached to the mixing nozzlewhich is positioned to receive the regulated flow of concentrate. Themixing nozzle assembly includes an adjustable valve member which servesto regulate the desired amount of flow of diluent into a mixing area ofthe nozzle for proper mixture with the simultaneously admittedconcentrate.

Accordingly, immediately prior to dispensing, the concentrate is mixedwith the diluent in proper proportions to provide a desired taste,consistency and density of the product to be dispensed.

Upon emptying of the concentrate from the disposable container, meansare provided to unclamp the pump assembly from the flexible conduitmeans. More specifically, the rotatable shaft and supporting backupplate are moved in a pivotal fashion away from one another by means of areciprocally mounted plate which acts as a wedge-like member todisengage both the rotatable shaft and the backup plate from operativeengagement with the flexible conduit means. After unclamping of the pumpassembly the entire disposable dispensing container is removed alongwith the attached flexible conduit which also may be readily detachedfrom the mixing nozzle assembly. A freshsupply of concentrate may bereadily inserted in the dispenser merely by attaching a new flexibleconduit to the container inverting the container. attaching the flexibleconduit to the mixing nozzle assembly and re-engaging the pump assemblyin operative engagement with the conduit as described above.

The present invention further includes piercing means which may bepivotally or movably mounted, by means of a spring biased lever, topuncture the bottom side of the installed disposable dispensingcontainer after is has been inverted and mounted within the dispenser.This, of course, is necessary to allow proper flow of the concentrateout of the container and through the flexible conduit means.

Another embodiment of the present invention is directed to a dispenserwherein a plurality of different sized dispensing containers may all besimultaneously mounted in removable fashion within the dispenser.

The invention accordingly comprises the features of construction,combination of elements and arrangement of parts which will beexemplified in the constructions hereinafter set forth, and the scope ofthe invention will be indicated in the claims.

For a fuller understanding of the nature and objects of the invention,reference should be had to the following detailed description taken inconnection with the accompanying drawings in which:

FIGS. 1 and 1A are plan front views of the exteriors of differentembodiments of the present invention.

FIGS. 2, 2A and 2B are perspective views ofa disposable dispensingcontainer and an attached conduit means.

FIG. 3 is a top cross sectional view taken along line 33 of FIG. 1showing the piercing means of the present invention.

FIG. 4 is a cross sectional view taken along line 44 of FIG. I showingthe piercing means of the present invention.

FIG. 5 is a cross sectional side view taken along line 5-5 of FIG. 1showing the mixing nozzle of the present invention.

FIG. 6 is a cross sectional top view taken along line 66 of FIG. 5 andshows details of the pump assembly.

FIG. 6A is a top view of the pump assembly in open unlocked positionrelative to the flexible conduit means.

FIG. 6B is a front view of the pump assembly of the present invention inoperative engagement with the flexible conduit means.

FIG. 7 is a front cross sectional view of the pump assembly.

FIG. 8 is a top cross sectional view taken along line 8-8 of FIG. 7.

FIG. 9 is a top cross sectional view taken along line 99 of FIG. 7.

FIG. 10 is a top cross sectional view taken along line 10l0 of FIG. 5showing the slide plate of the present invention.

FIG. 11 is a top cross sectional view taken along line 11-11 of FIG. 5showing the adjustable valve interior.

FIG. 12 is a side view, partially in section, of the flexible conduitmeans.

FIG. 13 is a bottom view of the flexible conduit means.

Similar reference characters refer to similar parts throughout theseveral views of the drawings.

In that the structural elements associated with each of the individualcontainers are essentially the same, specific reference will not be madeto each of the structural elements associated with each of the separatecontainers and it is herein intended that a discussion of onecooperative set of elements will be representative of all.

The dispenser of the present invention is shown in FIGS. 1 and 1A asincluding an outer casing generally indicated as 10. As shown, thedispenser may be adapted to hold a plurality of different sizedcontainers 12 which are removably mounted in an inverted fashion.

More specifically and with reference to FIGS. 2, 2A and 2B, thecontainers 12 are designed to hold the liquid concentrate. Accordingly,an important feature of the present dispenser is the capability ofutilizing a disposable type container as shown in FIGS. 1 and 1A. It isintended that the liquid concentrate may be shipped or stored incontainer 12 and that provision be made in its structural design toallow it to act as a dispensing container. Therefore, a sealing means 14which may be a pressure sensitive or tear away tape is provided to covercentrally located aperture 16 to prevent leakage of the concentrate fromcontainer 12 during shipping or storage. Before placing the disposabledispensing container 12 in the dispenser, the sealing means 14 isremoved and a flexible conduit means 18 is inserted in aperture 16 asshown. With specific reference to FIG. 12 the flexible conduit means 18is shown as having a connection generally indicated as 20 integrallyformed at one extremity of the conduit means 18. The connection 20includes a plurality of prongs 22 designed to be inserted into thecontainer 12, such that an outwardly extending annular flange 24 remainson the exterior surface 26 of container 12 and serves as a sealing meanswhen the container is removably mounted in the dispenser in an invertedfashion as shown in FIGS. 1 and 1A.

With further reference to FIGS. 1 and 1A, control buttons 13 areprovided on the exterior of casing and serve to activate the dispensingcycle when depressed by a user of the dispenser.

With specific reference to FIGS. 3 and 4 the present dispenser furtherincludes a piercing means generally,

indicated as 28 and designed to pierce or puncture end surface 30 ofdispensing container 12 once it is inserted in the dispenser.

Puncturing the dispensing container 12 in this or like fashion isnecessary to relieve any negative pressure within the container whichwould of course impede the flow of the contents of dispensing container12 through flexible conduit 18. The piercing means include at least onepiercing member 32 pivotally mounted on shaft 34 which in turn isattached to mounting plate 36. Shaft 34 is connected to reciprocatingshaft 38 by means of linkage 40 which is biased in the position shown inFIG. 4 by means of spring 42. Accordingly, as shaft 38 moves in thedirection of arrow 44 (FIG. 4) link member 40, shaft 34 and piercingmember 32 are all forced to rotate in a clockwise direction against theforce of spring 42 thereby causing the piercing member 32 to pierce theend surface 30 of dispenser container 12 so as to provide the propervent aperture.

Turning now to FIG. 5, the disposable dispensing container 12 is shownmounted in an inverted operative position on support plate 50. For thepurposes of clarity flexible conduit means 18 is represented in brokenlines as extending from dispensing container 12, in cooperative relationto pump assembly 52 and removably con nected to mixing nozzle assemblygenerally indicated as 54.

Electric motor 56 is provided to operate pump assembly 52 by means ofrotating drive shaft 58 which, in turn, rotates drive gear 60. Idlergear 62 is driven by gear 60 and, in turn, serves to rotate gear 64which is attached to one extremity of rotatably mounted shaft 66. Anoutwardly extending flange 68 is mounted in a helical configurationalong the periphery of shaft 66 and serves to provide pumping action byoperatively engaging flexible conduit 18 as will be fully explainedlater.

As clearly shown in FIGS. 6, 6A, 6B, 8 and 9, the pump assembly 52further includes a backup or support block arranged in cooperatingrelation with helical flange or thread 68 and shaft 66. Both shaft 66and backup block 70 are mounted on arm members 72 and 74 respectivelywherein these arm members are pivotally mounted on support plate 76 bymeans of support shaft 78 and 79 respectively. Spring member 81 is con--nected at each extremity to connecting members 82 and 84 whichthemselves are arranged in elongated slots 86 and 88 formed on supportplate 76. Arm mem' ber 72 and 74 are biased to move towards each otherinto operative position as shown in FIG. 6. Idler gear 62 is alsomounted on arm member 72 and is movable along with arm member 72 whilemaintaining engagement with both .drive gears 60 and shaft gear 64.

Rotatable shaft 66 and therefore flange 68 may move into and out ofoperative clamping position along with backup block 70 in relation toflexible conduit means 18. This relationship is clearly shown in FIG. 68wherein a longitudinal portion of flexible conduit means 18 abuts backupblock 70 in supporting relation such that flange or thread 68 descendsalong the supported longitudinal portion of flexible conduit 18 as shaft66 rotates. Flange 68 thereby depresses or deforms flexible conduit 18as shaft 66 continuously r0- tates which in turn forces any liquid orconcentrate within the flexible conduit 18 to pass therethrough is aperistaltic fashion.

As pointed out above, arm member 72 and 74 are movable into and out ofwhat may be referred to as an operative clamping position relative toflexible conduit 18.This movable feature of the pump assembly is an Iimportant advantage in the present invention in that it readily allowsthe conduit means 18 and consequently the disposable dispensingcontainer 12 to be easily connected to and removed from the pumpassembly and therefore allows efficient installation and disposal of thedispensing container 12. This clamping and un clamping action of thepump assembly is provided by a reciprocal slide means (FIGS. 6 and 6A)which may be generally indicated as 73. The reciprocal slide meansincludes an elongated push arm integrally attached to the main bodyportion of reciprocal plate 91. An elongated slot 77 is formed in theplate 91 and arranged to cooperate with bolt or fastening means 77a in asliding relation. Referring specifically to FIG. 10, a wedge member isconnected directly to reciprocal plate 91 by means of connectingbrackets 83 and 85. Wedge member 80 is arranged on reciprocal plate 91such that the free extremity 87 of wedge member 80 is aligned betweenpivot arm 72 and 74 of the pump assembly. As clearly shown in FIG. 6A,reciprocation of reciprocal plate 91 causes extremity 87 of wedge member80 to be forced between pivot arm 72 and 74 thereby pivoting rotatableshaft 66 and backup block 70 out of operative relation and into anunclamping position relative to flexible conduit 18. In order tofacilitate the supporting and clamping of flexible conduit 18 by thebackup block 70 and rotatable shaft 66, the block 70 and arms 72 and 74have specifically configured arcuate surfaces 90 and 92, 94respectively, which conform to the shape of flexible conduit 18.

Referring again to FIG. 5, the dispenser of the subject inventionincludes mixing means which comprises the mixing nozzle, as 54 designedto be removably connected, by means of the nipple 96, to one end offlexible conduit means 18. As is apparent, the action of pump assembly52 forces concentrate through flexible conduit 18 in peristaltic fashionwherein the concentrate is continuously directed into the mixing nozzle54 through channel 98 defined within nipple 96. The adjustable valveassembly 100 is threadably connected to the mixing nozzle 54 in such amanner as to direct dilu ent fluid from a supply (not shown) throughconduit 102 and into the lower portion of channel 98 through orifice101. It is important that the size of orifice 101 be such as to create ahigh velocity jet of diluent issuing into channel 98. This fact plus thepositioning of orifice 101 so that the diluent enters channel 98 at asubstantially right angle to the flow of concentrate, causes turbulenccin the mixing area. Such turbulence is important in accomplishing propermixing of diluent and conccntrate. Additional turbulence andconsequently more efficient mixing occurs due to another change indirection as the mixed product exits from conduit 112. The lower portionof channel 98 comprises the mixing area of the dispenser whereproportions of the diluent are mixed with the concentrate flowing fromflexible conduit 18. Additional turbulence is created by the mixedproduct flowing at substantially right angles into conduit 112.

As clearly shown in FIG. 11 valve element 104 is ad justably positionedrelative to valve seat 106 by means of a threaded or like connection 108such that the flow of liquid may be regulated as it passes throughconduit 102 channel 110 and about valve element 104. Accordingly theamount of diluent entering channel 98 is regulated so as to correspondwith the amount of liquid concentrate passing into channel 98 fromflexible conduit 18 in order to establish the desired density andmixture of the liquid product being dispensed After mixture of theconcentrate and diluent in the mixing area, the mixed liquid then passesthrough a delivery channel 112 and into the desired cup or vessel 114.

In operation, a cup 114 or like container is placed under the open endof conduit 112 of mixing nozzle 54. When the cup 114 is positioned, theperson desiring to obtain the mixed product from the dispenser merelypushes button 13 of the appropriate product. This in turn activateselectric motor 56 which causes the driving of gears 60, 62 and 64. Thepump assembly 52 is thereby activated to rotate shaft 66 which causeshelical thread 68 to operatively engage disposable flexible conduit 18.Consequently, the concentrate from container 12 is forced through theconduit 18 in peristaltic fashion and delivered to conduit 98 of nipple96. Simultaneously, diluent material flows from a supply (not shown)into the adjustable valve structure through conduits 102 and and aboutvalve element 104. Accordingly concentrate from conduit 18 and diluentfrom valve 100 enters the lower portion of conduit 98 which comprisesthe mixing area of the nozzle 54. After being mixed in properproportions the product flows through conduit 112 into container 114which has been properly placed by the operator of the dispenser.

It will thus be seen that the objects set forth above among those madeapparent from the preceding description, are efficiently attained and,since certain changes may be made in the above article without departingfrom the scope of the invention it is intended that all matter containedin the above description and shown in the accompanying drawings shall beinterpreted as illustrative and not in a limiting sense.

It is also to be understood that the following claims are intended tocover all of the generic and specific features of the invention hereindescribed, and all statements of the scope of the invention which, as amatter of language, might be said to fall therebetween.

Now that the invention has been described,

What is claimed is:

l. A dispenser of the type designed to mix liquids of differentdensities, said dispenser of the type designed to mix liquids ofdifferent densities, said dispenser comprising:

a. a removably mounted dispensing container;

b. a pump assembly positioned in communicating relation with saiddispensing container;

c. conduit means attached to said dispensing container and positioned tooperably engage said pump assembly, said pump assembly is mounted to bemovable into and out of operable engagement with said conduit means,such that said dispensing container and said conduit means are removablefrom said dispenser and d. mixing means for combining the liquids priorto dispensing: said pump assembly comprising a rotatable shaft includinga flange substantially helically mounted about the periphery thereofand, a backup plate operatively positioned to engage said conduit meansin supporting relation thereto; said shaft and said backup plate beingpivotally mounted so as to be movable into and out of operative engagement with'said conduit means; said flange arranged to continuouslydepress successive portions of said conduit means during rotation ofsaid shaft, whereby liquid from said dispensing container is forcedthrough said conduit means.

2. A dispenser as in claim 1 wherein said dispenser further comprisesmovably mounted piercing means positioned adjacent said dispensingcontainer and serving to puncture said dispensing container whenoperatively positioned within the dispenser.

3. A dispenser of the type designed to mix liquids of differentdensities, said dispenser comprising:

a. a removably mounted dispensing container;

b. a pump assembly positioned in communicating relation with saiddispensing container;

c. Conduit means attached to said dispensing con tainer and positionedto operably engage said pump assembly, and

d. mixing means for combining the liquids prior to dispensing:

said mixing means comprising a valve assembly for adjustably regulatingthe flow of at least one of said liquids and nozzle means positioned incommunicating relation with both said valve assembly and said dispensingcontainer; said valve assembly comprising a valve seat and a valveelement adjustably mounted within said assembly in cooperating relationto said valve seat; said valve assembly positioned in communicatingrelation to a source of said one liquid; whereby the flow of said oneliquid is regulated by said valve assembly dependent upon the rate offlow of at least one other liquid through said nozzle means.

4. A dispenser as in claim 3 wherein said valve element is threadedlyconnected within said valve assembly so as to be adjustably positionedrelative to said valve seat.

5. A dispenser as in claim 3 further comprising an orifice arranged inintercommunicating relationbetween said valve assembly and said nozzlemeans, said orifice being of sufficient size to form ajet flow of saidone liquid into said nozzle means, said nozzle means comprising a firstchannel defining the flow of another of said liquids, said orificearranged substantially perpendictv lar to said first channel, wherebyturbulence is created by the joining of said one liquid to said otherliquid.

6. A dispenser as in claim 3 wherein said nozzle means comprises: afirst flow defining channel, a sec- 0nd channel communicating with saidfirst channel and arranged substantially perpendicular thereto, wherebyturbulence is created by a flow of liquid from said first channel tosaid second channel.

7. A dispenser of the type designed to mix liquids of i differentdensities, said dispenser comprising:

a. a removably mounted dispensing container;

b. a pump assembly positioned in communicating relation with saiddispensing container;

c. conduit means attached to said dispensing con tainer and positionedto operably engage said pump assembly; and

d. mixing means for combining the liquids prior to dispensing: said pumpassembly including a rotatable shaft, an

outwardly extending flange helically arranged along the periphery ofsaid shaft and a backup plate positioned in cooperating relation to saidshaft, said shaft and said backup plate movably mounted relative to saidpump assembly so as to move said shaft and said backup plate into andout of operative relation to each other. 8. A dispenser as in claim 7wherein said pump assembly further includes unclamping means comprisinga reciprocally mounted plate positioned to move said shaft and saidbackup plate into and out of operative engagement with said conduitmeans.

"UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION August 7, 1973Patent No. S Dated Carl C. Bauerlein et a1. Inventor(s) I It iscertified-that errorappears in the above-identified patent and that saidLetters'Patent are hereby corrected as shown below:

Column 7 line 36, after "where" insert proper Signed end seaied this17th day of September 1974.

(SEAL) Attest: I

- MCCOY M. GIBSON JR; r c. 'MARSHALLYDANN Commissioner of Patents Attesting Officer;

FORM PC3-1050 (10-69)

1. A dispenser of the type designed to mix liquids of differentdensities, said dispenser of the type designed to mix liquids ofdifferent densities, said dispenser comprising: a. a removably mounteddispensing container; b. a pump assembly positioned in communicatingrelation with said dispensing container; c. conduit means attached tosaid dispensing container and positioned to operably engage said pumpassembly, said pump assembly is mounted to be movable into and out ofoperable engagement with said conduit means, such that said dispensingcontainer and said conduit means are removable from said dispenser andd. mixing means for combining the liquids prior to dispensing: said pumpassembly comprising a rotatable shaft including a flange substantiallyhelically mounted about the periphery thereof and, a backup plateoperatively positioned to engage said conduit means in supportingrelation thereto; said shaft and said backup plate being pivotallymounted so as to be movable into and out of operative engagement withsaid conduit means; said flange arranged to continuously depresssuccessive portions of said conduit means during rotation of said shaft,whereby liquid from said dispensing container is forced through saidconduit means.
 2. A dispenser as in claim 1 wherein said dispenserfurther comprises movably mounted piercing means positioned adjacentsaid dispensing container and serving to puncture said dispensingcontainer when operatively positioned within the dispenser.
 3. AdispeNser of the type designed to mix liquids of different densities,said dispenser comprising: a. a removably mounted dispensing container;b. a pump assembly positioned in communicating relation with saiddispensing container; c. Conduit means attached to said dispensingcontainer and positioned to operably engage said pump assembly, and d.mixing means for combining the liquids prior to dispensing: said mixingmeans comprising a valve assembly for adjustably regulating the flow ofat least one of said liquids and nozzle means positioned incommunicating relation with both said valve assembly and said dispensingcontainer; said valve assembly comprising a valve seat and a valveelement adjustably mounted within said assembly in cooperating relationto said valve seat; said valve assembly positioned in communicatingrelation to a source of said one liquid; whereby the flow of said oneliquid is regulated by said valve assembly dependent upon the rate offlow of at least one other liquid through said nozzle means.
 4. Adispenser as in claim 3 wherein said valve element is threadedlyconnected within said valve assembly so as to be adjustably positionedrelative to said valve seat.
 5. A dispenser as in claim 3 furthercomprising an orifice arranged in intercommunicating relation betweensaid valve assembly and said nozzle means, said orifice being ofsufficient size to form a jet flow of said one liquid into said nozzlemeans, said nozzle means comprising a first channel defining the flow ofanother of said liquids, said orifice arranged substantiallyperpendicular to said first channel, whereby turbulence is created bythe joining of said one liquid to said other liquid.
 6. A dispenser asin claim 3 wherein said nozzle means comprises: a first flow definingchannel, a second channel communicating with said first channel andarranged substantially perpendicular thereto, whereby turbulence iscreated by a flow of liquid from said first channel to said secondchannel.
 7. A dispenser of the type designed to mix liquids of differentdensities, said dispenser comprising: a. a removably mounted dispensingcontainer; b. a pump assembly positioned in communicating relation withsaid dispensing container; c. conduit means attached to said dispensingcontainer and positioned to operably engage said pump assembly; and d.mixing means for combining the liquids prior to dispensing: said pumpassembly including a rotatable shaft, an outwardly extending flangehelically arranged along the periphery of said shaft and a backup platepositioned in cooperating relation to said shaft, said shaft and saidbackup plate movably mounted relative to said pump assembly so as tomove said shaft and said backup plate into and out of operative relationto each other.
 8. A dispenser as in claim 7 wherein said pump assemblyfurther includes unclamping means comprising a reciprocally mountedplate positioned to move said shaft and said backup plate into and outof operative engagement with said conduit means.